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JOB DETAILS

Finance Officer / Bookkeeper

CompanyRheEnergise

LocationMontreal

Work ModeOn Site

PostedJanuary 7, 2026

About The Company

RheEnergise is bringing fresh innovation to the world’s dominant form of storage: pumped hydro storage. We call our solution High-Density Hydro®. HD Hydro® uses our proprietary HD Fluid R-19 which has 2.5x the density of water. It is environmentally benign, non-toxic, non-corrosive, and non-reactive. R-19 gives RheEnergise projects 2.5x the power and 2.5x the energy when compared to water. Unlike traditional pumped hydro energy storage, HD Hydro can operate using smaller hills as opposed to needing mountains. As a result, it opens up vastly more options in terms of potential sites. The technology is sized in the range of 10MW to 100MW, and 20MWh to 200MWh. HD Hydro is the best option for meeting society’s energy storage needs; compared to the competition it is agile and fast to deploy, massively scalable, has low impact, low cost, and low risk. RheEnergise consists of a highly experienced team with a strong track record in renewable energy, engineering, finance and bringing innovation to market.

About the Role

<a rel="noreferrer">Finance Officer / Bookkeeper</a>Montreal, CanadaSalary: Commensurate with experience, CAD $55-62k FTE <div>Type: Part-time, 20 hours, (Spread over 3-5 days)</div> About RheEnergise RheEnergise is a cleantech innovator developing low-cost, massively scalable, long-duration energy storage. Utilising a proprietary high-density fluid in a closed loop system, we believe that HD Hydro® will be instrumental in enabling the global energy transition. <div>There is no time to waste in bringing climate tech solutions to market. To support our ambitious development strategy, RheEnergise has a growing dedicated and passionate team based in North London (Commercial, Financial, Legal, Governance and Operations) and Montreal (Finance and R&D).</div><div>RheEnergise is now seeking a skilled Finance Officer / Bookkeeper to support our finance function at the Canadian subsidiary, with a unique opportunity to work amongst the exciting research and development of our technology and the engineers making it happen.  </div><div> </div><div>About the Role</div><div> </div>The overall objective of the role is to perform accounting and reporting as a key support to the day-to-day financial operations within the business. You will be playing an important role in cash management, bookkeeping, and financial reporting, during an exciting time in our company’s growth and step toward commercialisation.Within this role, you will be supporting areas such as monthly management accounts and reporting, bank reconciliations, bookkeeping entries, cash calls, supporting SRED and grant reporting, procurement, expenses processing, journal entries, general ledgers, and payroll. As part of a growing startup, you will have the opportunity to engage in process management, with input in day-to-day practices.This is a part-time role with flexible scheduling. We encourage candidates who are able to work reduced hours spread over four days each week, including at least one day in the office. We offer a flexible work policy designed to support individual needs while ensuring strong collaboration with the team.This role will report into the UK based Financial Controller and work alongside the Canadian and UK teams Ideal Candidate Profile:<ul><li>Qualifications: Diploma or certificate in Accounting, Bookkeeping, or Business Administration or Completion of two years (first level) of a recognised professional accounting program or experience with courses in accounting or bookkeeping combined with several years of experience as a financial or accounting clerk</li><li>Experience: Experience in accounting and finance or similar role, with some knowledge of Canadian GAAP basics, GST/HST filings, payroll fundamentals, year-end preparation for accountants, account reconciliations, and posting journal entries</li><li>Communication Skills: Excellent written and verbal communication to effectively present financial information to stakeholders.</li><li>Adaptability: Comfortable working in a fast-paced environment with evolving priorities.</li><li>Nice-to-have: Experience with CRA filings (GST/HST, payroll remittances), knowledge of cloud accounting workflows, understanding of internal controls, familiarity with SME accounting (if relevant)</li></ul> Why work for RheEnergise If you have a passion for renewable energy and a strong track record in finance, we encourage you to apply. At RheEnergise you will work with a diverse and talented group of people who share a passion for clean energy and sustainability. We are a young company aiming for rapid and dynamic growth in the next two years and are seeking ambitious, talented people who wish to learn and grow with the company. You can really make a difference to our ultimate success, benefit from working with an inspiring team, and for a competitive package including share options. We are committed to building a diverse and inclusive team at RheEnergise, as we believe that a variety of backgrounds, skills and interests is what makes our company stronger and a great place to work. We operate a fully inclusive recruitment policy and welcome applications from anyone with the qualifications and experience listed. How to Apply To apply for this role, please apply through our <a href="https://rheenergise.freshteam.com/jobs/" rel="noreferrer" style="box-sizing: border-box; outline: 0px; background-color: transparent; text-decoration: none; color: rgb(44, 92, 197); cursor: pointer; font-family: -apple-system, BlinkMacSystemFont, ;">recruitment page</a> and send us your CV and a cover letter outlining why your skills and experience make you a strong fit. We look forward to hearing from you!

Key Skills

AccountingBookkeepingFinancial ReportingCash ManagementBank ReconciliationsPayrollJournal EntriesGeneral LedgersProcurementExpenses ProcessingCommunication SkillsAdaptabilityCRA FilingsCloud AccountingInternal ControlsSME Accounting